Inverse association between breast cancer incidence and degree of visual impairment in Finland. |
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| Authors: | P K Verkasalo E Pukkala R G Stevens M Ojamo S L Rudanko |
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| Affiliation: | Department of Public Health, University of Helsinki, Finland. |
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| Abstract: | A total of 10935 women with visual impairment were identified from the Finnish Register of Visual Impairment and followed up for cancer through the Finnish Cancer Registry for years 1983-1996. Breast cancer risk decreased by degree of visual impairment (P for trend 0.04) which suggests a dose-response relationship between visible light and breast cancer risk. |
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| Keywords: | blindness breast neoplasms epidemiology medical record linkage melatonin vision disorders |
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